public void CreateGrowArrayProcess()
{
var concurrentArray = new ConcurrentArrayBuilder <string, object>().Build();
var newArraySize = LinearDoublingPrimeStrategy.GetNextCapacity(concurrentArray.Capacity);
var spy = new ExchangeArraySpy <string, object>();
var growArrayProcess = new GrowArrayProcess <string, object>(concurrentArray, newArraySize, spy.ExchangeArray);
var existingProcess = concurrentArray.EstablishGrowArrayProcess(growArrayProcess);
existingProcess.Should().Be(null);
concurrentArray.ReadGrowArrayProcessVolatile().Should().BeSameAs(growArrayProcess);
spy.ExchangeArrayMustNotHaveBeenCalled();
}
public void GetExistingGrowArrayProcess()
{
var concurrentArray = new ConcurrentArrayBuilder <Type, object>().Build();
var newArraySize = LinearDoublingPrimeStrategy.GetNextCapacity(concurrentArray.Capacity);
var spy = new ExchangeArraySpy <Type, object>();
var growArrayProcess = new GrowArrayProcess <Type, object>(concurrentArray, newArraySize, spy.ExchangeArray);
concurrentArray.EstablishGrowArrayProcess(growArrayProcess);
var otherGrowArrayProcess = new GrowArrayProcess <Type, object>(concurrentArray, newArraySize, spy.ExchangeArray);
var existingProcess = concurrentArray.EstablishGrowArrayProcess(otherGrowArrayProcess);
existingProcess.Should().BeSameAs(growArrayProcess);
concurrentArray.ReadGrowArrayProcessVolatile().Should().BeSameAs(growArrayProcess);
}
public void ConcurrentAddTest()
{
var processorCount = Environment.ProcessorCount;
var entryCount = processorCount * 100000;
var allNumbers = Enumerable.Range(1, entryCount).ToArray();
var groupsPerTask = allNumbers.GroupBy(number => number % processorCount)
.ToArray();
var concurrentArray = new ConcurrentArrayBuilder <int, object>().WithCapacity(LinearDoublingPrimeStrategy.GetNextCapacity(entryCount))
.Build();
Parallel.ForEach(groupsPerTask, group =>
{
foreach (var number in group)
{
var addResult = concurrentArray.TryAdd(new Entry <int, object>(number.GetHashCode(), number, null));
addResult.OperationResult.Should().Be(AddResult.AddSuccessful);
}
});
concurrentArray.Count.Should().Be(allNumbers.Length);
foreach (var number in allNumbers)
{
var entry = concurrentArray.Find(number.GetHashCode(), number);
entry.Should().NotBeNull();
}
}
